In 2015, LEGO released 4 Disney Princess sets across 4 subthemes, all of these sets have been retired. Subthemes for that year included Aladdin, Frozen, Sleeping Beauty, and The Little Mermaid. For that year, the total price of all retail sets cost $128, today those sets are valued around $251, a growth of 96%.
Most valuable 2015 LEGO Disney Princess set
41063 Ariel's Undersea Palace $127.63
Most owned 2015 Disney Princess set
41062 Elsa's Sparkling Ice Castle
Theme / Subtheme Disney Princess / Sleeping Beauty
Year 2015
Pieces / Mini-doll figures 96 / 1
Availability Retired
41060 LEGO Disney Princess Sleeping Beauty's Royal Bedroom
Retail $12.99
Value $29.69
Growth  +128.6%
Annual growth 4.5%
Theme / Subtheme Disney Princess / Aladdin
Year 2015
Pieces / Mini-doll figures 143 / 1
Availability Retired
41061 LEGO Disney Princess Aladdin Jasmine's Exotic Palace
Retail $19.99
Value $40.00
Growth  +100.1%
Annual growth 4.2%
Theme / Subtheme Disney Princess / Frozen
Year 2015
Pieces / Mini-doll figures 292 / 3
Availability Retired
41062 LEGO Disney Princess Frozen Elsa's Sparkling Ice Castle
Retail $39.99
Value $53.41
Growth  +33.6%
Annual growth 3.7%
Theme / Subtheme Disney Princess / The Little Mermaid
Year 2015
Pieces / Mini-doll figures 379 / 2
Availability Retired
41063 LEGO Disney Princess The Little Mermaid Ariel's Undersea Palace
Retail $54.99
Value $127.63
Growth  +132.1%
Annual growth 6.1%